Let's get this math done. We have 223 and we're going to multiply it by 315. This is the same as taking 223 and adding it to itself 315 times.
Step 1: 0 + 223 = 223
Step 2: 223 + 223 = 446
Step 3: 446 + 223 = 669
Step 4: 669 + 223 = 892
Step 5: 892 + 223 = 1115
Step 6: 1115 + 223 = 1338
Step 7: 1338 + 223 = 1561
Step 8: 1561 + 223 = 1784
Step 9: 1784 + 223 = 2007
Step 10: 2007 + 223 = 2230
Step 11: 2230 + 223 = 2453
Step 12: 2453 + 223 = 2676
Step 13: 2676 + 223 = 2899
Step 14: 2899 + 223 = 3122
Step 15: 3122 + 223 = 3345
Step 16: 3345 + 223 = 3568
Step 17: 3568 + 223 = 3791
Step 18: 3791 + 223 = 4014
Step 19: 4014 + 223 = 4237
Step 20: 4237 + 223 = 4460
Step 21: 4460 + 223 = 4683
Step 22: 4683 + 223 = 4906
Step 23: 4906 + 223 = 5129
Step 24: 5129 + 223 = 5352
Step 25: 5352 + 223 = 5575
Step 26: 5575 + 223 = 5798
Step 27: 5798 + 223 = 6021
Step 28: 6021 + 223 = 6244
Step 29: 6244 + 223 = 6467
Step 30: 6467 + 223 = 6690
Step 31: 6690 + 223 = 6913
Step 32: 6913 + 223 = 7136
Step 33: 7136 + 223 = 7359
Step 34: 7359 + 223 = 7582
Step 35: 7582 + 223 = 7805
Step 36: 7805 + 223 = 8028
Step 37: 8028 + 223 = 8251
Step 38: 8251 + 223 = 8474
Step 39: 8474 + 223 = 8697
Step 40: 8697 + 223 = 8920
Step 41: 8920 + 223 = 9143
Step 42: 9143 + 223 = 9366
Step 43: 9366 + 223 = 9589
Step 44: 9589 + 223 = 9812
Step 45: 9812 + 223 = 10035
Step 46: 10035 + 223 = 10258
Step 47: 10258 + 223 = 10481
Step 48: 10481 + 223 = 10704
Step 49: 10704 + 223 = 10927
Step 50: 10927 + 223 = 11150
Step 51: 11150 + 223 = 11373
Step 52: 11373 + 223 = 11596
Step 53: 11596 + 223 = 11819
Step 54: 11819 + 223 = 12042
Step 55: 12042 + 223 = 12265
Step 56: 12265 + 223 = 12488
Step 57: 12488 + 223 = 12711
Step 58: 12711 + 223 = 12934
Step 59: 12934 + 223 = 13157
Step 60: 13157 + 223 = 13380
Step 61: 13380 + 223 = 13603
Step 62: 13603 + 223 = 13826
Step 63: 13826 + 223 = 14049
Step 64: 14049 + 223 = 14272
Step 65: 14272 + 223 = 14495
Step 66: 14495 + 223 = 14718
Step 67: 14718 + 223 = 14941
Step 68: 14941 + 223 = 15164
Step 69: 15164 + 223 = 15387
Step 70: 15387 + 223 = 15610
Step 71: 15610 + 223 = 15833
Step 72: 15833 + 223 = 16056
Step 73: 16056 + 223 = 16279
Step 74: 16279 + 223 = 16502
Step 75: 16502 + 223 = 16725
Step 76: 16725 + 223 = 16948
Step 77: 16948 + 223 = 17171
Step 78: 17171 + 223 = 17394
Step 79: 17394 + 223 = 17617
Step 80: 17617 + 223 = 17840
Step 81: 17840 + 223 = 18063
Step 82: 18063 + 223 = 18286
Step 83: 18286 + 223 = 18509
Step 84: 18509 + 223 = 18732
Step 85: 18732 + 223 = 18955
Step 86: 18955 + 223 = 19178
Step 87: 19178 + 223 = 19401
Step 88: 19401 + 223 = 19624
Step 89: 19624 + 223 = 19847
Step 90: 19847 + 223 = 20070
Step 91: 20070 + 223 = 20293
Step 92: 20293 + 223 = 20516
Step 93: 20516 + 223 = 20739
Step 94: 20739 + 223 = 20962
Step 95: 20962 + 223 = 21185
Step 96: 21185 + 223 = 21408
Step 97: 21408 + 223 = 21631
Step 98: 21631 + 223 = 21854
Step 99: 21854 + 223 = 22077
Step 100: 22077 + 223 = 22300
Step 101: 22300 + 223 = 22523
Step 102: 22523 + 223 = 22746
Step 103: 22746 + 223 = 22969
Step 104: 22969 + 223 = 23192
Step 105: 23192 + 223 = 23415
Step 106: 23415 + 223 = 23638
Step 107: 23638 + 223 = 23861
Step 108: 23861 + 223 = 24084
Step 109: 24084 + 223 = 24307
Step 110: 24307 + 223 = 24530
Step 111: 24530 + 223 = 24753
Step 112: 24753 + 223 = 24976
Step 113: 24976 + 223 = 25199
Step 114: 25199 + 223 = 25422
Step 115: 25422 + 223 = 25645
Step 116: 25645 + 223 = 25868
Step 117: 25868 + 223 = 26091
Step 118: 26091 + 223 = 26314
Step 119: 26314 + 223 = 26537
Step 120: 26537 + 223 = 26760
Step 121: 26760 + 223 = 26983
Step 122: 26983 + 223 = 27206
Step 123: 27206 + 223 = 27429
Step 124: 27429 + 223 = 27652
Step 125: 27652 + 223 = 27875
Step 126: 27875 + 223 = 28098
Step 127: 28098 + 223 = 28321
Step 128: 28321 + 223 = 28544
Step 129: 28544 + 223 = 28767
Step 130: 28767 + 223 = 28990
Step 131: 28990 + 223 = 29213
Step 132: 29213 + 223 = 29436
Step 133: 29436 + 223 = 29659
Step 134: 29659 + 223 = 29882
Step 135: 29882 + 223 = 30105
Step 136: 30105 + 223 = 30328
Step 137: 30328 + 223 = 30551
Step 138: 30551 + 223 = 30774
Step 139: 30774 + 223 = 30997
Step 140: 30997 + 223 = 31220
Step 141: 31220 + 223 = 31443
Step 142: 31443 + 223 = 31666
Step 143: 31666 + 223 = 31889
Step 144: 31889 + 223 = 32112
Step 145: 32112 + 223 = 32335
Step 146: 32335 + 223 = 32558
Step 147: 32558 + 223 = 32781
Step 148: 32781 + 223 = 33004
Step 149: 33004 + 223 = 33227
Step 150: 33227 + 223 = 33450
Step 151: 33450 + 223 = 33673
Step 152: 33673 + 223 = 33896
Step 153: 33896 + 223 = 34119
Step 154: 34119 + 223 = 34342
Step 155: 34342 + 223 = 34565
Step 156: 34565 + 223 = 34788
Step 157: 34788 + 223 = 35011
Step 158: 35011 + 223 = 35234
Step 159: 35234 + 223 = 35457
Step 160: 35457 + 223 = 35680
Step 161: 35680 + 223 = 35903
Step 162: 35903 + 223 = 36126
Step 163: 36126 + 223 = 36349
Step 164: 36349 + 223 = 36572
Step 165: 36572 + 223 = 36795
Step 166: 36795 + 223 = 37018
Step 167: 37018 + 223 = 37241
Step 168: 37241 + 223 = 37464
Step 169: 37464 + 223 = 37687
Step 170: 37687 + 223 = 37910
Step 171: 37910 + 223 = 38133
Step 172: 38133 + 223 = 38356
Step 173: 38356 + 223 = 38579
Step 174: 38579 + 223 = 38802
Step 175: 38802 + 223 = 39025
Step 176: 39025 + 223 = 39248
Step 177: 39248 + 223 = 39471
Step 178: 39471 + 223 = 39694
Step 179: 39694 + 223 = 39917
Step 180: 39917 + 223 = 40140
Step 181: 40140 + 223 = 40363
Step 182: 40363 + 223 = 40586
Step 183: 40586 + 223 = 40809
Step 184: 40809 + 223 = 41032
Step 185: 41032 + 223 = 41255
Step 186: 41255 + 223 = 41478
Step 187: 41478 + 223 = 41701
Step 188: 41701 + 223 = 41924
Step 189: 41924 + 223 = 42147
Step 190: 42147 + 223 = 42370
Step 191: 42370 + 223 = 42593
Step 192: 42593 + 223 = 42816
Step 193: 42816 + 223 = 43039
Step 194: 43039 + 223 = 43262
Step 195: 43262 + 223 = 43485
Step 196: 43485 + 223 = 43708
Step 197: 43708 + 223 = 43931
Step 198: 43931 + 223 = 44154
Step 199: 44154 + 223 = 44377
Step 200: 44377 + 223 = 44600
Step 201: 44600 + 223 = 44823
Step 202: 44823 + 223 = 45046
Step 203: 45046 + 223 = 45269
Step 204: 45269 + 223 = 45492
Step 205: 45492 + 223 = 45715
Step 206: 45715 + 223 = 45938
Step 207: 45938 + 223 = 46161
Step 208: 46161 + 223 = 46384
Step 209: 46384 + 223 = 46607
Step 210: 46607 + 223 = 46830
Step 211: 46830 + 223 = 47053
Step 212: 47053 + 223 = 47276
Step 213: 47276 + 223 = 47499
Step 214: 47499 + 223 = 47722
Step 215: 47722 + 223 = 47945
Step 216: 47945 + 223 = 48168
Step 217: 48168 + 223 = 48391
Step 218: 48391 + 223 = 48614
Step 219: 48614 + 223 = 48837
Step 220: 48837 + 223 = 49060
Step 221: 49060 + 223 = 49283
Step 222: 49283 + 223 = 49506
Step 223: 49506 + 223 = 49729
Step 224: 49729 + 223 = 49952
Step 225: 49952 + 223 = 50175
Step 226: 50175 + 223 = 50398
Step 227: 50398 + 223 = 50621
Step 228: 50621 + 223 = 50844
Step 229: 50844 + 223 = 51067
Step 230: 51067 + 223 = 51290
Step 231: 51290 + 223 = 51513
Step 232: 51513 + 223 = 51736
Step 233: 51736 + 223 = 51959
Step 234: 51959 + 223 = 52182
Step 235: 52182 + 223 = 52405
Step 236: 52405 + 223 = 52628
Step 237: 52628 + 223 = 52851
Step 238: 52851 + 223 = 53074
Step 239: 53074 + 223 = 53297
Step 240: 53297 + 223 = 53520
Step 241: 53520 + 223 = 53743
Step 242: 53743 + 223 = 53966
Step 243: 53966 + 223 = 54189
Step 244: 54189 + 223 = 54412
Step 245: 54412 + 223 = 54635
Step 246: 54635 + 223 = 54858
Step 247: 54858 + 223 = 55081
Step 248: 55081 + 223 = 55304
Step 249: 55304 + 223 = 55527
Step 250: 55527 + 223 = 55750
Step 251: 55750 + 223 = 55973
Step 252: 55973 + 223 = 56196
Step 253: 56196 + 223 = 56419
Step 254: 56419 + 223 = 56642
Step 255: 56642 + 223 = 56865
Step 256: 56865 + 223 = 57088
Step 257: 57088 + 223 = 57311
Step 258: 57311 + 223 = 57534
Step 259: 57534 + 223 = 57757
Step 260: 57757 + 223 = 57980
Step 261: 57980 + 223 = 58203
Step 262: 58203 + 223 = 58426
Step 263: 58426 + 223 = 58649
Step 264: 58649 + 223 = 58872
Step 265: 58872 + 223 = 59095
Step 266: 59095 + 223 = 59318
Step 267: 59318 + 223 = 59541
Step 268: 59541 + 223 = 59764
Step 269: 59764 + 223 = 59987
Step 270: 59987 + 223 = 60210
Step 271: 60210 + 223 = 60433
Step 272: 60433 + 223 = 60656
Step 273: 60656 + 223 = 60879
Step 274: 60879 + 223 = 61102
Step 275: 61102 + 223 = 61325
Step 276: 61325 + 223 = 61548
Step 277: 61548 + 223 = 61771
Step 278: 61771 + 223 = 61994
Step 279: 61994 + 223 = 62217
Step 280: 62217 + 223 = 62440
Step 281: 62440 + 223 = 62663
Step 282: 62663 + 223 = 62886
Step 283: 62886 + 223 = 63109
Step 284: 63109 + 223 = 63332
Step 285: 63332 + 223 = 63555
Step 286: 63555 + 223 = 63778
Step 287: 63778 + 223 = 64001
Step 288: 64001 + 223 = 64224
Step 289: 64224 + 223 = 64447
Step 290: 64447 + 223 = 64670
Step 291: 64670 + 223 = 64893
Step 292: 64893 + 223 = 65116
Step 293: 65116 + 223 = 65339
Step 294: 65339 + 223 = 65562
Step 295: 65562 + 223 = 65785
Step 296: 65785 + 223 = 66008
Step 297: 66008 + 223 = 66231
Step 298: 66231 + 223 = 66454
Step 299: 66454 + 223 = 66677
Step 300: 66677 + 223 = 66900
Step 301: 66900 + 223 = 67123
Step 302: 67123 + 223 = 67346
Step 303: 67346 + 223 = 67569
Step 304: 67569 + 223 = 67792
Step 305: 67792 + 223 = 68015
Step 306: 68015 + 223 = 68238
Step 307: 68238 + 223 = 68461
Step 308: 68461 + 223 = 68684
Step 309: 68684 + 223 = 68907
Step 310: 68907 + 223 = 69130
Step 311: 69130 + 223 = 69353
Step 312: 69353 + 223 = 69576
Step 313: 69576 + 223 = 69799
Step 314: 69799 + 223 = 70022
Step 315: 70022 + 223 = 70245

So, 223*315 = 70245